I recently converted my account to two factor authentication on my twitter account thinking it would be a good idea to prevent issues. Well it in fact caused a major issues that Twitter isn't prepared to handle. About a week after I started using two factor my phone started having issues and I decided to do a factory reset. I had written down my backup code for Twitter thinking everything would be ok. This is when I hit the issues. My code doesn't work! The thing that supposed to let you back in doesn't do anything. Without it you can't log into twitter.com and the twitter app only works if you have a temporary password from the web site. What sucks is the I can login with my password but there is no way to prove I'm me without that stupid backup code. Over the past two weeks I have put in two tickets explaining my issue to Twitter support with zero response. I have never had issues with my Google, Last Pass or Facebook accounts just Twitters lame unsupported two factor method. Thanks Twitter you can close the account... wait what was I thinking Twitter support will just ignored that request too.